Home / 257,983.92-356,036.88-156,013.20

Finding the Fourth Proportional to 257,983.92, 356,036.88 and 156,013.20

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Solution

The fourth proportional to 257,983.92, 356,036.88 and 156,013.20 is: 215,309.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,983.92 : 356,036.88 = 156,013.20 : x
  2. Step 2: Convert to fraction form
    257,983.92/356,036.88 = 156,013.20/x
  3. Step 3: Cross multiply
    257,983.92x = 356,036.88 × 156,013.20
  4. Step 4: Simplify right side
    257,983.92x = 55,546,452,966.82
  5. Step 5: Solve for x
    x = 55,546,452,966.82/257,983.92
  6. Step 6: Final answer
    x = 215,309.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.